she often appears on the stage as a young girl.she must appear in a bright red dress
she often appears on the stage as a young girl.she must appear in a bright red dress
這兩句中一個(gè)appear 作為第三人稱加了S.但是后面一句當(dāng)中為什么沒加S?
這兩句中一個(gè)appear 作為第三人稱加了S.但是后面一句當(dāng)中為什么沒加S?
英語人氣：807 ℃時(shí)間：2019-10-17 02:32:51
優(yōu)質(zhì)解答
因?yàn)榈诙€(gè)appear前加了一個(gè)must,must又是一個(gè)情態(tài)動(dòng)詞,情態(tài)動(dòng)詞后邊加動(dòng)詞要用動(dòng)詞原型,不管第幾人稱.即使是過去式,也是情態(tài)動(dòng)詞變過去式.記住就行了,情態(tài)動(dòng)詞后邊加動(dòng)詞原型.
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